561064596251 has 8 divisors (see below), whose sum is σ = 569074986480. Its totient is φ = 553062978432.

The previous prime is 561064596223. The next prime is 561064596283. The reversal of 561064596251 is 152695460165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561064596251 - 2⁶ = 561064596187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561064596251.

It is not an unprimeable number, because it can be changed into a prime (561064596151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2064221 + ... + 2320158.

It is an arithmetic number, because the mean of its divisors is an integer number (71134373310).

Almost surely, 2^561064596251 is an apocalyptic number.

561064596251 is a deficient number, since it is larger than the sum of its proper divisors (8010390229).

561064596251 is a wasteful number, since it uses less digits than its factorization.

561064596251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386205.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 561064596251 in words is "five hundred sixty-one billion, sixty-four million, five hundred ninety-six thousand, two hundred fifty-one".